In the field of heavy-ion physics we are faced with interesting questions such as: what are the different particle production mechanisms across different system sizes? can we find the onset of the QGP in heavy-ion collisions? and is there a QGP droplet formed in small collision systems? [1]}
In proton–proton collisions the particle production mechanism should be dominated by the fragmentation of high momentum partons into jet-like structures. In collisions of heavy nuclei such as Pb–Pb the production of particles is expected to be dominated by the hadronisation of the QGP. Studying the particle production mechanisms is thus key to understand the physics governing both small and large systems.
